Bank repossessions increased 38% in the second quarter from the same period a year earlier for a record total of 269,952, according to data to be released Thursday by RealtyTrac.

The number of U.S. homes taken back by banks through foreclosure hit a record high in the second quarter, even as lenders delayed more homes from entering the process through short sales and loan modification efforts, according to data to be released Thursday.

This growing supply of lender-owned properties could set back the nation’s housing recovery but probably won’t sink it completely if the nation’s employment situation doesn’t deteriorate further and the economy begins to pick up steam, experts said. Sales of homes have faltered nationally in recent months with the expiration of government tax incentives for buyers.

U.S. bank repossessions increased 38% in the second quarter from the same period a year earlier for a record total of 269,952, according to Irvine research firm RealtyTrac. That was also a jump of 5% from the previous quarter. If that pace continues through the year, the number of homes taken by banks is likely to top 1 million by the end of 2010, said Rick Sharga, RealtyTrac senior vice president.